That true marriage love contains in itself ineffable delights that can neither be numbered nor described can be seen from the fact that this is the fundamental love of all celestial and spiritual loves, since through that love man becomes love; for from it each of the married pair loves the other as good loves truth and truth loves good, thus representatively as the Lord loves heaven and the church. Such a love can come forth only through a marriage in which the man is truth and the wife is good. When a man through marriage has become such a love he is also in love to the Lord and in love toward the neighbor, and thus in a love for all good and in a love for all truth. For from man as a love loves of every kind must proceed; therefore marriage love is the fundamental love of all the loves of heaven. And as it is the fundamental love of all the loves of heaven it is also the foundation of all the delights and joys of heaven, since every delight and joy is of love. From this it follows that heavenly joys, in their order and in their degrees, have their origins and their causes in marriage love. From the felicities of marriages a conclusion may be drawn respecting the infelicities of adulteries, namely, that the love of adultery is the fundamental love of all infernal loves, which are in themselves not loves, but hatreds, consequently from the love of adultery hatreds of every kind gush forth, both against God and against the neighbor, and in general against every good and truth of heaven and the church; therefore to it all infelicities belong, for, as has been said before, from adulteries man becomes a form of hell, and from the love of adulteries he becomes an image of the devil. That from the marriages in which there is true marriage love all delights and felicities increase even till they become the delights and felicities of the inmost heaven, and that all that is undelightful and unhappy in the marriages in which love of adultery reigns increases in direfulness even to the lowest hell, can be seen in the work on Heaven and Hell (n. 386). (A.E., n. 993.) True marriage love is from the Lord alone. It is from the Lord alone because it descends from the Lord's love for heaven and the church, and thus from the love of good and truth; for good is from the Lord, and truth is in heaven and the church; and from this it follows that true marriage love in its first essence is love to the Lord. And from this it is that no one can be in true marriage love and in its pleasantnesses, delights, blessings, and joys, unless he acknowledges the Lord alone, that is, that the trinity is in Him. One who approaches the Father as a person by Himself, or the Holy Spirit as a person by Himself, and not these as in the Lord, can have no marriage love.